Maintenance46 Check the propeller shaft oil seal for dam-age.EMU30662Removing propellerEMU29197Spline models1. Straighten the cotter pin and pull it out us-ing a pair of pliers.2. Remove the propeller nut, washer, andspacer (if equipped). WARNING! Do notuse your hand to hold the propellerwhen loosening the propeller nut.[EWM01890]3. Remove the propeller, washer (ifequipped), and thrust washer.EMU30672Installing propellerEMU29234Spline modelsNOTICEECM00501Make sure to use a new cotter pin andbend the ends over securely. Otherwise,the propeller could come off during opera-tion and be lost.1. Apply Yamaha marine grease or a corro-sion resistant grease to the propellershaft.2. Install the spacer (if equipped), thrustwasher, washer (if equipped), and pro-peller on the propeller shaft. NOTICE:Make sure to install the thrust washerbefore installing the propeller. Other-wise, the lower case and propellerboss could be damaged. [ECM01881]3. Install the spacer (if equipped) and thewasher. Tighten the propeller nut to thespecified torque.4. Align the propeller nut with the propellershaft hole. Insert a new cotter pin in thehole and bend the cotter pin ends.NOTICE: Do not reuse the cotter pin.Otherwise, the propeller can come offduring operation. [ECM01891]1. Cotter pin2. Propeller nut3. Washer4. Propeller5. Thrust washerZMU0287723451 Propeller nut tightening torque:17.0 Nm (1.73 kgf-m, 12.5 ft-lb)